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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/ge/ge_user_guide.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">GE 使用指南</h1><div class="date inPage">28 Nov 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><p class="- topic/p p" data-ofbid="d69958e22__20250121171522">Graphics Engine (GE)
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是用来进行
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2D 图形加速的硬件模块。主要包括格式转换、旋转、镜像、 缩放、Alpha 混合、Color Key、位块搬移、Dither 等功能。</p><div class="table-container"><table class="- topic/table table frame-all" id="ge__table_jy5_xqz_c1c" data-ofbid="ge__table_jy5_xqz_c1c" data-cols="3"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">术语定义</span></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="ge__table_jy5_xqz_c1c__entry__1">术语</th><th class="- topic/entry entry colsep-1 rowsep-1" id="ge__table_jy5_xqz_c1c__entry__2">定义</th><th class="- topic/entry entry colsep-0 rowsep-1" id="ge__table_jy5_xqz_c1c__entry__3">注释说明</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="ge__table_jy5_xqz_c1c__entry__1">GE</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="ge__table_jy5_xqz_c1c__entry__2">Graphics Engine</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="ge__table_jy5_xqz_c1c__entry__3">2D 图形加速引擎</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="ge__table_jy5_xqz_c1c__entry__1">blit</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="ge__table_jy5_xqz_c1c__entry__2">bit block transfer</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="ge__table_jy5_xqz_c1c__entry__3">位块搬移</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="ge__table_jy5_xqz_c1c__entry__1">MPP</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="ge__table_jy5_xqz_c1c__entry__2">Media Process Platform</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="ge__table_jy5_xqz_c1c__entry__3">多媒体处理平台</td></tr></tbody></table></div><div class="- topic/p p" data-ofbid="d69958e61__20250121171522">GE V1.0 版本支持功能：<ul class="- topic/ul ul" id="ge__ul_d4g_dpg_ybc" data-ofbid="ge__ul_d4g_dpg_ybc"><li class="- topic/li li" data-ofbid="d69958e66__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e68__20250121171522">最大输入/输出图像大小 4096x4096</p>
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</li><li class="- topic/li li" data-ofbid="d69958e71__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e73__20250121171522">支持命令队列</p>
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</li><li class="- topic/li li" data-ofbid="d69958e76__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e78__20250121171522">支持输入输出格式：ARGB8888/
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XRGB8888/
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RGB888/
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ARGB4444/
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ARGB1555/
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RGB565</p>
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</li><li class="- topic/li li" data-ofbid="d69958e81__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e83__20250121171522">支持水平和垂直 Flip</p>
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</li><li class="- topic/li li" data-ofbid="d69958e86__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e88__20250121171522">支持 90/
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180/
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270 度旋转</p>
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</li><li class="- topic/li li" data-ofbid="d69958e91__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e93__20250121171522">支持任意角度旋转</p>
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</li><li class="- topic/li li" data-ofbid="d69958e96__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e98__20250121171522">支持 scan order</p>
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</li><li class="- topic/li li" data-ofbid="d69958e101__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e103__20250121171522">支持 1/16x ~ 16x 缩放，采用 bilinear 滤波算法</p>
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</li><li class="- topic/li li" data-ofbid="d69958e106__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e108__20250121171522">支持
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Porter-Duff
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规则的 Alpha 混合</p>
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</li><li class="- topic/li li" data-ofbid="d69958e111__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e113__20250121171522">支持 Color Key</p>
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</li><li class="- topic/li li" data-ofbid="d69958e117__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e119__20250121171522">支持矩形填充</p>
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</li><li class="- topic/li li" data-ofbid="d69958e122__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e124__20250121171522">位块搬移
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(bit block transfer)</p>
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</li><li class="- topic/li li" data-ofbid="d69958e127__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e129__20250121171522">支持误差扩散 Dither</p>
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</li></ul></div><div class="- topic/p p" data-ofbid="d69958e134__20250121171522">GE V1.1 版本支持功能：<ul class="- topic/ul ul" id="ge__ul_ndt_dpg_ybc" data-ofbid="ge__ul_ndt_dpg_ybc"><li class="- topic/li li" data-ofbid="d69958e139__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e141__20250121171522">最大输入/
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输出图像大小 4096x4096</p>
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</li><li class="- topic/li li" data-ofbid="d69958e144__20250121171522">
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<div class="- topic/p p" data-ofbid="d69958e146__20250121171522">支持 RGB 转 YUV，支持 YUV 转 RGB<ul class="- topic/ul ul" id="ge__ul_ehl_xpd_lzb" data-ofbid="ge__ul_ehl_xpd_lzb"><li class="- topic/li li" data-ofbid="d69958e149__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e151__20250121171522">RGB 格式包括：ARGB8888/
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XRGB8888/
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RGB888/
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ARGB4444/
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ARGB1555/
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RGB565</p>
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</li><li class="- topic/li li" data-ofbid="d69958e154__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e156__20250121171522">YUV 格式包括：YUV420P/
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NV12/
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NV21/
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YUV422P/
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NV16/
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NV61/
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YUYV/
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YVYU/
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UYVY/
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VYUYYUV400/
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YUV444</p>
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</li></ul></div>
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</li><li class="- topic/li li" data-ofbid="d69958e160__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e162__20250121171522">支持水平和垂直 Flip</p>
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</li><li class="- topic/li li" data-ofbid="d69958e165__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e167__20250121171522">所有格式支持 90/
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180/
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270 度旋转</p>
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</li><li class="- topic/li li" data-ofbid="d69958e170__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e172__20250121171522">RGB 格式支持任意角度旋转</p>
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</li><li class="- topic/li li" data-ofbid="d69958e175__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e177__20250121171522">RGB 格式支持 scan order</p>
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</li><li class="- topic/li li" data-ofbid="d69958e180__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e182__20250121171522">支持 1/16x ~ 16x 缩放，采用 6x4 taps 16 phases 滤波算法</p>
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||
</li><li class="- topic/li li" data-ofbid="d69958e185__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e187__20250121171522">支持
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Porter-Duff
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规则的 Alpha 混合</p>
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||
</li><li class="- topic/li li" data-ofbid="d69958e190__20250121171522">
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||
<p class="- topic/p p" data-ofbid="d69958e192__20250121171522">支持 Color Key</p>
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||
</li><li class="- topic/li li" data-ofbid="d69958e195__20250121171522">
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||
<p class="- topic/p p" data-ofbid="d69958e197__20250121171522">支持矩形填充</p>
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</li><li class="- topic/li li" data-ofbid="d69958e201__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e203__20250121171522">位块搬移(bit block transfer)</p>
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</li><li class="- topic/li li" data-ofbid="d69958e206__20250121171522">
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<p class="- topic/p p" data-ofbid="d69958e208__20250121171522">支持误差扩散 Dither</p>
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</li></ul></div><section class="- topic/section section" id="ge__section_ebs_rmb_bzb" data-ofbid="ge__section_ebs_rmb_bzb"><h2 class="- topic/title title sectiontitle">原理框图</h2>
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<div class="- topic/p p" data-ofbid="d69958e218__20250121171522">
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<figure class="- topic/fig fig fignone" id="ge__fig_pjm_4zk_ndc" data-ofbid="ge__fig_pjm_4zk_ndc"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="ge__image_www_yhd_sbc" src="../../../images/ge/ge_overview_blockV0.png"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">GE V1.0</span></figcaption></figure>
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<figure class="- topic/fig fig fignone" id="ge__fig_rgj_pzk_ndc" data-ofbid="ge__fig_rgj_pzk_ndc"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="ge__image_mrp_rqg_ybc" src="../../../images/ge/ge_overview_blockV0.png"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 2</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">GE V1.1</span></figcaption></figure></div>
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